Neil deGrasse Tyson on aliens.

Neil deGrasse Tyson is an American astrophysicists and the charismatic host of "StarTalk Radio". In this interview with Business Insider, Tyson discusses aliens, and why he believes humans have not interacted with them yet.

Like us, click here:
Share this video on Facebook
Like us, click here:
More Information:   
From Around the Web

Get our best content straight to your inbox.

x